[INFO] cloning repository https://github.com/KenFang/headr [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KenFang/headr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKenFang%2Fheadr", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKenFang%2Fheadr'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 017a3a76d5c124f9fe2cc4895c81e3b6b8db9917 [INFO] checking KenFang/headr against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKenFang%2Fheadr" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/KenFang/headr on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/KenFang/headr [INFO] finished tweaking git repo https://github.com/KenFang/headr [INFO] tweaked toml for git repo https://github.com/KenFang/headr written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/KenFang/headr already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 92575a92ed1bf07a214a15f9704c128c4a293b1f07296c093c2af0b301529698 [INFO] running `Command { std: "docker" "start" "-a" "92575a92ed1bf07a214a15f9704c128c4a293b1f07296c093c2af0b301529698", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "92575a92ed1bf07a214a15f9704c128c4a293b1f07296c093c2af0b301529698", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "92575a92ed1bf07a214a15f9704c128c4a293b1f07296c093c2af0b301529698", kill_on_drop: false }` [INFO] [stdout] 92575a92ed1bf07a214a15f9704c128c4a293b1f07296c093c2af0b301529698 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 61dc367b201b945c91d8c72acf414d6aac6a921b22c4f081aa6b41316f43fa28 [INFO] running `Command { std: "docker" "start" "-a" "61dc367b201b945c91d8c72acf414d6aac6a921b22c4f081aa6b41316f43fa28", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.122 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking predicates-core v1.0.3 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking termtree v0.2.4 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking predicates-tree v1.0.5 [INFO] [stderr] Checking float-cmp v0.9.0 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking predicates v2.1.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking assert_cmd v2.0.4 [INFO] [stderr] Checking headr v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fmt::format` [INFO] [stdout] --> src/lib.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::fmt::format; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::format` [INFO] [stdout] --> src/lib.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::fmt::format; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `files`, `lines`, and `bytes` are never read [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Config { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 7 | files: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 8 | lines: usize, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 9 | bytes: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `files`, `lines`, and `bytes` are never read [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Config { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 7 | files: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 8 | lines: usize, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 9 | bytes: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.67s [INFO] running `Command { std: "docker" "inspect" "61dc367b201b945c91d8c72acf414d6aac6a921b22c4f081aa6b41316f43fa28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "61dc367b201b945c91d8c72acf414d6aac6a921b22c4f081aa6b41316f43fa28", kill_on_drop: false }` [INFO] [stdout] 61dc367b201b945c91d8c72acf414d6aac6a921b22c4f081aa6b41316f43fa28 [INFO] checking KenFang/headr against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKenFang%2Fheadr" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/KenFang/headr on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/KenFang/headr [INFO] finished tweaking git repo https://github.com/KenFang/headr [INFO] tweaked toml for git repo https://github.com/KenFang/headr written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/KenFang/headr already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] eab343a9334563b5fef8ce1430302a79b12a4e4df2675b61df1645ddae88867f [INFO] running `Command { std: "docker" "start" "-a" "eab343a9334563b5fef8ce1430302a79b12a4e4df2675b61df1645ddae88867f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eab343a9334563b5fef8ce1430302a79b12a4e4df2675b61df1645ddae88867f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eab343a9334563b5fef8ce1430302a79b12a4e4df2675b61df1645ddae88867f", kill_on_drop: false }` [INFO] [stdout] eab343a9334563b5fef8ce1430302a79b12a4e4df2675b61df1645ddae88867f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f3a5377b5051c35e3b97fc24f178c79f87eed4d02276673b8c112b6f60b2dec6 [INFO] running `Command { std: "docker" "start" "-a" "f3a5377b5051c35e3b97fc24f178c79f87eed4d02276673b8c112b6f60b2dec6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.122 [INFO] [stderr] Checking predicates-core v1.0.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking termtree v0.2.4 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking predicates-tree v1.0.5 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking float-cmp v0.9.0 [INFO] [stderr] Checking predicates v2.1.1 [INFO] [stderr] Checking assert_cmd v2.0.4 [INFO] [stderr] Checking headr v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fmt::format` [INFO] [stdout] --> src/lib.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::fmt::format; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::format` [INFO] [stdout] --> src/lib.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::fmt::format; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `files`, `lines`, and `bytes` are never read [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Config { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 7 | files: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 8 | lines: usize, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 9 | bytes: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `files`, `lines`, and `bytes` are never read [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Config { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 7 | files: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 8 | lines: usize, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 9 | bytes: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.92s [INFO] running `Command { std: "docker" "inspect" "f3a5377b5051c35e3b97fc24f178c79f87eed4d02276673b8c112b6f60b2dec6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3a5377b5051c35e3b97fc24f178c79f87eed4d02276673b8c112b6f60b2dec6", kill_on_drop: false }` [INFO] [stdout] f3a5377b5051c35e3b97fc24f178c79f87eed4d02276673b8c112b6f60b2dec6